I think your best bet would be to talk to former Yorkies about how he implements everything. I'm friends with a few and they all back up what's said in the movie: If you miss a second practice, you're gone. Here's a message he sent back to me after I asked him for advice. The guy in question was York's #1 for a couple years.
Newton was a great coach and a good thing about his methods is that they are very reproducible. I'll take you through a sample day of practice.
The first thing that you do when you get to practice is have a sign in sheet. If anyone at your school wants to be a manager this is a great spot for them. The athlete "checks in" by saying his last name or when Newton knows them he'll say something like "Achtung, checking in". When you give a nick name to someone it makes them feel special and appreciated. It can be something clever about their last name (achtung), where they're from (philly), or just something about them that stands out (shades). He had very strict rules on tardies and missed practices, but those would probably be best reinforced after you win a few state titles haha.
After this there would be a very long meeting where he goes through the workout, what the kids did last year in the workout, stories from last years workout, etc. Goes over where practice is on Saturday and what time. Then the thought of the day: This is something that you can relate to running but also to life. So he'll ask the crowd "Now what in the hell does that mean??" and explain it in terms of life. These are quotes easily found online from coaches or make up your own. He does this every day. He'll spend sometime breaking the balls of some of the athletes to show them how he can have fun. The way he interacts with athletes is tough to reproduce, though. For me, he knew he could constantly break me down and tell me how poorly I was doing because he knew it would motivate me. With kids with other personalities, he would ONLY give them positive reinforcement. He would do this by accessing their personalities. I've talked with him about it and he's told me he has a different way of interacting with all of his athletes.
The love part. He was like a second dad to me. One thing he stresses in the first meeting: I trust all of you, and you should trust me to make you a better runner and person. but break that trust and it takes months to rebuild. He expects people to work hard and they will see results. Just by saying things like that and showing that you care, you will get their respect. He doesn't treat anyone differently. If I was tardy two times in a season, he would have benched me just as he would someone running a 10 minute mile. Just show the kids that you REALLY care that they're getting better, not necessarily winning.
Freshman mileage- if the kid has never ran before, he'll have them run one to four laps around the track and then send them home. He'll give them abbreviated workouts and treat them like celebrities. Start them off running 15-20 miles per week and increase by 10% per week to prevent injury.
Recruiting. Have your "heavy hitters" (kids that are not completely socially awkward) hit the halls and try to sign kids up not doing a fall sport to cross country. This is how some of the best runners newton's ever had have started. The more kids you have on the team, the better.
I coached xc this past year and like someone earlier said, because it was our first year as a program, I only had about 15-20 kids between both guys and girls. If I kicked people off after one absence, there just wouldn't be a team.